1 | <?php |
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2 | /** |
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3 | * CSSTidy - CSS Parser and Optimiser |
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4 | * |
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5 | * CSS Printing class |
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6 | * This class prints CSS data generated by csstidy. |
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7 | * |
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8 | * This file is part of CSSTidy. |
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9 | * |
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10 | * CSSTidy is free software; you can redistribute it and/or modify |
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11 | * it under the terms of the GNU General Public License as published by |
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12 | * the Free Software Foundation; either version 2 of the License, or |
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13 | * (at your option) any later version. |
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14 | * |
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15 | * CSSTidy is distributed in the hope that it will be useful, |
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16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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18 | * GNU General Public License for more details. |
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19 | * |
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20 | * You should have received a copy of the GNU General Public License |
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21 | * along with CSSTidy; if not, write to the Free Software |
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22 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
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23 | * |
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24 | * @license http://opensource.org/licenses/gpl-license.php GNU Public License |
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25 | * @package csstidy |
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26 | * @author Florian Schmitz (floele at gmail dot com) 2005-2006 |
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27 | */ |
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28 | |
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29 | /** |
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30 | * CSS Printing class |
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31 | * |
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32 | * This class prints CSS data generated by csstidy. |
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33 | * |
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34 | * @package csstidy |
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35 | * @author Florian Schmitz (floele at gmail dot com) 2005-2006 |
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36 | * @version 1.0 |
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37 | */ |
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38 | |
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39 | class csstidy_print |
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40 | { |
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41 | /** |
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42 | * Saves the input CSS string |
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43 | * @var string |
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44 | * @access private |
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45 | */ |
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46 | var $input_css = ''; |
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47 | |
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48 | /** |
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49 | * Saves the formatted CSS string |
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50 | * @var string |
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51 | * @access public |
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52 | */ |
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53 | var $output_css = ''; |
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54 | |
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55 | /** |
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56 | * Saves the formatted CSS string (plain text) |
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57 | * @var string |
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58 | * @access public |
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59 | */ |
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60 | var $output_css_plain = ''; |
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61 | |
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62 | /** |
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63 | * Constructor |
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64 | * @param array $css contains the class csstidy |
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65 | * @access private |
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66 | * @version 1.0 |
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67 | */ |
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68 | function csstidy_print(&$css) |
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69 | { |
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70 | $this->parser =& $css; |
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71 | $this->css =& $css->css; |
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72 | $this->template =& $css->template; |
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73 | $this->tokens =& $css->tokens; |
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74 | $this->charset =& $css->charset; |
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75 | $this->import =& $css->import; |
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76 | $this->namespace =& $css->namespace; |
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77 | } |
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78 | |
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79 | /** |
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80 | * Resets output_css and output_css_plain (new css code) |
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81 | * @access private |
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82 | * @version 1.0 |
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83 | */ |
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84 | function _reset() |
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85 | { |
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86 | $this->output_css = ''; |
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87 | $this->output_css_plain = ''; |
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88 | } |
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89 | |
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90 | /** |
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91 | * Returns the CSS code as plain text |
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92 | * @return string |
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93 | * @access public |
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94 | * @version 1.0 |
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95 | */ |
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96 | function plain() |
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97 | { |
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98 | $this->_print(true); |
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99 | return $this->output_css_plain; |
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100 | } |
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101 | |
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102 | /** |
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103 | * Returns the formatted CSS code |
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104 | * @return string |
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105 | * @access public |
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106 | * @version 1.0 |
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107 | */ |
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108 | function formatted() |
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109 | { |
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110 | $this->_print(false); |
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111 | return $this->output_css; |
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112 | } |
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113 | |
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114 | /** |
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115 | * Returns the formatted CSS Code and saves it into $this->output_css and $this->output_css_plain |
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116 | * @param bool $plain plain text or not |
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117 | * @access private |
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118 | * @version 2.0 |
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119 | */ |
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120 | function _print($plain = false) |
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121 | { |
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122 | if ($this->output_css && $this->output_css_plain) { |
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123 | return; |
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124 | } |
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125 | |
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126 | $output = ''; |
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127 | if (!$this->parser->get_cfg('preserve_css')) { |
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128 | $this->_convert_raw_css(); |
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129 | } |
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130 | |
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131 | $template =& $this->template; |
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132 | |
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133 | if ($plain) { |
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134 | $template = array_map('strip_tags', $template); |
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135 | } |
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136 | |
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137 | if ($this->parser->get_cfg('timestamp')) { |
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138 | array_unshift($this->tokens, array(COMMENT, ' CSSTidy ' . $this->parser->version . ': ' . date('r') . ' ')); |
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139 | } |
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140 | |
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141 | if (!empty($this->charset)) { |
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142 | $output .= $template[0].'@charset '.$template[5].$this->charset.$template[6]; |
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143 | } |
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144 | |
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145 | if (!empty($this->import)) { |
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146 | for ($i = 0, $size = count($this->import); $i < $size; $i ++) { |
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147 | $output .= $template[0].'@import '.$template[5].$this->import[$i].$template[6]; |
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148 | } |
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149 | } |
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150 | |
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151 | if (!empty($this->namespace)) { |
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152 | $output .= $template[0].'@namespace '.$template[5].$this->namespace.$template[6]; |
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153 | } |
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154 | |
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155 | $output .= $template[13]; |
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156 | $in_at_out = ''; |
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157 | $out =& $output; |
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158 | |
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159 | foreach ($this->tokens as $key => $token) |
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160 | { |
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161 | switch ($token[0]) |
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162 | { |
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163 | case AT_START: |
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164 | $out .= $template[0].$this->_htmlsp($token[1], $plain).$template[1]; |
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165 | $out =& $in_at_out; |
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166 | break; |
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167 | |
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168 | case SEL_START: |
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169 | if($this->parser->get_cfg('lowercase_s')) $token[1] = strtolower($token[1]); |
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170 | $out .= ($token[1]{0} !== '@') ? $template[2].$this->_htmlsp($token[1], $plain) : $template[0].$this->_htmlsp($token[1], $plain); |
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171 | $out .= $template[3]; |
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172 | break; |
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173 | |
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174 | case PROPERTY: |
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175 | if($this->parser->get_cfg('case_properties') == 2) $token[1] = strtoupper($token[1]); |
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176 | if($this->parser->get_cfg('case_properties') == 1) $token[1] = strtolower($token[1]); |
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177 | $out .= $template[4] . $this->_htmlsp($token[1], $plain) . ':' . $template[5]; |
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178 | break; |
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179 | |
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180 | case VALUE: |
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181 | $out .= $this->_htmlsp($token[1], $plain); |
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182 | if($this->_seeknocomment($key, 1) == SEL_END && $this->parser->get_cfg('remove_last_;')) { |
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183 | $out .= str_replace(';', '', $template[6]); |
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184 | } else { |
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185 | $out .= $template[6]; |
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186 | } |
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187 | break; |
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188 | |
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189 | case SEL_END: |
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190 | $out .= $template[7]; |
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191 | if($this->_seeknocomment($key, 1) != AT_END) $out .= $template[8]; |
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192 | break; |
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193 | |
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194 | case AT_END: |
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195 | $out =& $output; |
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196 | $out .= $template[10] . str_replace("\n", "\n" . $template[10], $in_at_out); |
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197 | $in_at_out = ''; |
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198 | $out .= $template[9]; |
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199 | break; |
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200 | |
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201 | case COMMENT: |
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202 | $out .= $template[11] . '/*' . $this->_htmlsp($token[1], $plain) . '*/' . $template[12]; |
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203 | break; |
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204 | } |
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205 | } |
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206 | |
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207 | $output = trim($output); |
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208 | |
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209 | if (!$plain) { |
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210 | $this->output_css = $output; |
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211 | $this->_print(true); |
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212 | } else { |
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213 | $this->output_css_plain = $output; |
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214 | } |
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215 | } |
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216 | |
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217 | /** |
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218 | * Gets the next token type which is $move away from $key, excluding comments |
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219 | * @param integer $key current position |
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220 | * @param integer $move move this far |
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221 | * @return mixed a token type |
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222 | * @access private |
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223 | * @version 1.0 |
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224 | */ |
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225 | function _seeknocomment($key, $move) { |
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226 | $go = ($move > 0) ? 1 : -1; |
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227 | for ($i = $key + 1; abs($key-$i)-1 < abs($move); $i += $go) { |
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228 | if (!isset($this->tokens[$i])) { |
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229 | return; |
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230 | } |
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231 | if ($this->tokens[$i][0] == COMMENT) { |
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232 | $move += 1; |
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233 | continue; |
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234 | } |
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235 | return $this->tokens[$i][0]; |
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236 | } |
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237 | } |
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238 | |
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239 | /** |
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240 | * Converts $this->css array to a raw array ($this->tokens) |
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241 | * @access private |
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242 | * @version 1.0 |
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243 | */ |
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244 | function _convert_raw_css() |
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245 | { |
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246 | $this->tokens = array(); |
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247 | |
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248 | foreach ($this->css as $medium => $val) |
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249 | { |
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250 | if ($this->parser->get_cfg('sort_selectors')) ksort($val); |
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251 | if ($medium != DEFAULT_AT) { |
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252 | $this->parser->_add_token(AT_START, $medium, true); |
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253 | } |
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254 | |
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255 | foreach ($val as $selector => $vali) |
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256 | { |
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257 | if ($this->parser->get_cfg('sort_properties')) ksort($vali); |
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258 | $this->parser->_add_token(SEL_START, $selector, true); |
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259 | |
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260 | foreach ($vali as $property => $valj) |
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261 | { |
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262 | $this->parser->_add_token(PROPERTY, $property, true); |
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263 | $this->parser->_add_token(VALUE, $valj, true); |
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264 | } |
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265 | |
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266 | $this->parser->_add_token(SEL_END, $selector, true); |
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267 | } |
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268 | |
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269 | if ($medium != DEFAULT_AT) { |
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270 | $this->parser->_add_token(AT_END, $medium, true); |
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271 | } |
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272 | } |
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273 | } |
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274 | |
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275 | /** |
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276 | * Same as htmlspecialchars, only that chars are not replaced if $plain !== true. This makes print_code() cleaner. |
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277 | * @param string $string |
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278 | * @param bool $plain |
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279 | * @return string |
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280 | * @see csstidy_print::_print() |
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281 | * @access private |
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282 | * @version 1.0 |
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283 | */ |
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284 | function _htmlsp($string, $plain) |
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285 | { |
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286 | if (!$plain) { |
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287 | return htmlspecialchars($string); |
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288 | } |
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289 | return $string; |
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290 | } |
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291 | |
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292 | /** |
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293 | * Get compression ratio |
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294 | * @access public |
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295 | * @return float |
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296 | * @version 1.2 |
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297 | */ |
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298 | function get_ratio() |
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299 | { |
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300 | if (!$this->output_css_plain) { |
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301 | $this->formatted(); |
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302 | } |
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303 | return round((strlen($this->input_css) - strlen($this->output_css_plain)) / strlen($this->input_css), 3) * 100; |
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304 | } |
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305 | |
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306 | /** |
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307 | * Get difference between the old and new code in bytes and prints the code if necessary. |
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308 | * @access public |
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309 | * @return string |
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310 | * @version 1.1 |
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311 | */ |
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312 | function get_diff() |
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313 | { |
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314 | if (!$this->output_css_plain) { |
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315 | $this->formatted(); |
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316 | } |
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317 | |
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318 | $diff = strlen($this->output_css_plain) - strlen($this->input_css); |
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319 | |
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320 | if ($diff > 0) { |
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321 | return '+' . $diff; |
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322 | } elseif ($diff == 0) { |
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323 | return '+-' . $diff; |
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324 | } |
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325 | |
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326 | return $diff; |
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327 | } |
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328 | |
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329 | /** |
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330 | * Get the size of either input or output CSS in KB |
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331 | * @param string $loc default is "output" |
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332 | * @access public |
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333 | * @return integer |
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334 | * @version 1.0 |
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335 | */ |
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336 | function size($loc = 'output') |
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337 | { |
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338 | if ($loc == 'output' && !$this->output_css) { |
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339 | $this->formatted(); |
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340 | } |
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341 | |
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342 | if ($loc == 'input') { |
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343 | return (strlen($this->input_css) / 1000); |
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344 | } else { |
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345 | return (strlen($this->output_css_plain) / 1000); |
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346 | } |
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347 | } |
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348 | } |
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349 | ?> |
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